Calculus problem

  • Thread starter mpm166
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  • #1
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I have this calculus challenge problem (found here: http://firstyr.appsci.queensu.ca/apsc171/chall1.pdf [Broken])

I was able to answer part a and b, however I am unsure how to approach c and onwards

does anyone have any suggestions?
 
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Answers and Replies

  • #2
Zurtex
Science Advisor
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Is it not just a matter or letting in your equation: [itex]\varepsilon = \varepsilon + \Delta \varepsilon[/tex]

So you have:

[tex]V(x) = x^4 - 4x^3 + (\varepsilon + \Delta \varepsilon)x^2 + \delta x + 5[/tex]

Differentiating the above with respect to x, knowing that [itex]\delta x = 0[/itex] then equalising to 0 and solving for x and rearranging for [itex]\Delta \varepsilon[/itex]? Not entirely sure what the question is asking so not sure.

Although thinking about it you would probably have to show which V'(x) = 0 is the minimum.
 
  • #3
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any other suggestions people?
I still seem to be having trouble
 
  • #4
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What is your trouble ?
 

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